Essay
Customers arrive at drive-thru window at the local fast food place at an average rate of 12 per hour, following a Poisson distribution. The server at the window can service an average of 3 cars every 12 minutes with service times described by an exponential distribution. If a second lane is added where the server can process 4 cars every 15 minutes, calculate the following:
A) average utilization for one server and two servers
B) average time a customer spends in line waiting to enter the drive-thru bay for one server and two servers
C) average number of customers waiting in line for one server and two servers
D) Which system is better?
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